我在ConstraintLayout中放置了一个ScrollView,但是它并没有起作用。我尝试使用NestedScrollView代替ScrollView,但仍然无效。ScrollView在LinearLayout或RelativeLayout中运行良好,但在ConstraintLayout中不起作用。我已经将android:layout_height更改为match_parent和wrap_content,但仍然无效。问题出在哪里?
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
>
<include
android:id="@+id/other_toolbar_xml"
layout="@layout/other_toolbar_xml"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
/>
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintTop_toBottomOf="@id/other_toolbar_xml"
android:fillViewport="true"
tools:ignore="MissingConstraints"
>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<ImageView
android:id="@+id/img_content_xml"
android:layout_width="match_parent"
android:layout_height="170dp"
app:layout_constraintTop_toBottomOf="@id/other_toolbar_xml"
android:scaleType="fitXY"
tools:ignore="NotSibling"
/>
<TextView
android:id="@+id/title_content_xml"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/img_content_xml"
android:layout_marginRight="16dp"
android:paddingLeft="16dp"
android:textDirection="rtl"
android:text="title"
android:textSize="17sp"
android:textColor="#1d1d1d"
/>
<TextView
android:id="@+id/content_content_xml"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/title_content_xml"
android:layout_marginTop="20dp"
android:layout_marginRight="16dp"
android:layout_marginEnd="16dp"
android:paddingLeft="16dp"
android:textDirection="rtl"
android:text="content"
android:textColor="#1d1d1d"
/>
<ImageView
android:id="@+id/img_date_content_Xml"
android:layout_width="18dp"
android:layout_height="18dp"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/content_content_xml"
android:layout_marginTop="20dp"
android:layout_marginRight="16dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp"
android:src="@drawable/date"
/>
<TextView
android:id="@+id/date_content_xml"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="@id/content_content_xml"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintRight_toLeftOf="@id/img_date_content_Xml"
android:layout_marginTop="20dp"
android:layout_marginRight="8dp"
android:layout_marginEnd="8dp"
android:text="date"
android:textColor="#1d1d1d"
android:layout_marginBottom="16dp"
/>
<TextView
android:id="@+id/subject_content_xml"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="@id/content_content_xml"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginTop="20dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:singleLine="true"
android:text="subject"
android:textColor="#1d1d1d"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>